Mastic sealant contractors in Up Somborne
We carry out mastic sealing for building owners, managing agents and housing associations in Up Somborne. Send details for a fixed quote.
- A mix of products and colours from past repairs
- Repeated reactive repairs to the same buildings
- Communal area joints that look neglected
Mastic sealing for Up Somborne sites
Share the site address and what’s failing, and we’ll reply with a fixed quote or arrange a visit.
Mastic sealing in Up Somborne
Mastic Doctor has sealed joints on commercial and residential blocks since 2005. Our applicators are CSCS-carded, and the work is backed by public liability insurance. Resealed mastic joints in Up Somborne carry our 12-month guarantee. We work on external wall and movement joints, window and door perimeters on blocks and balcony and threshold joints, and the usual reasons a site gets in touch are open joints in brickwork or panels and mastic failing across several blocks on an estate. Most enquiries from Up Somborne start with one failed joint and grow into a wider look at the building: we check the joints around it and give you an honest view of what needs doing now and what can wait.
Owners and agents with buildings around smaller places such as Up Somborne tend to manage small terraces of association properties, converted barns and commercial units. Mastic around frames and on external joints wears out in time, whatever the building.
We stand by our work with a 12-month guarantee. It covers how we prepared and applied the sealant, and if something we did falls short, we return to it.
- Place
- Up Somborne (SO20)
- Region
- Hampshire
- Guarantee
- 12 months on our workmanship
- Price
- A fixed quote before we start
- Call
- 01277 525 020
- Updated
- 3 November 2026
When to call us in Up Somborne
Sunlight and weather break mastic down over time. It stiffens, stops stretching and cracks, especially on south and west faces.
What tends to prompt an enquiry:
- Cracked, hardened mastic round windows on a block
- Open joints in brickwork or panels
- The same joint failures repeated across a portfolio
- Damp patches beside frames
For owners of several units at places like Balldown Business Centre (2.2 miles east of Up Somborne), one programme can deal with frame and external mastic across the lot.
Questions to ask before you book
- How they’ll work around occupants
- Which product they’ll use, and why it suits the joint
- How the joint faces will be prepared and primed
- Health and safety accreditation such as CHAS
Blocks and managed buildings in Up Somborne
Rainfall across the South East, Up Somborne included, is lower than in many parts of the UK. Even so, frame mastic only goes on in dry, workable conditions, and the sunniest, most exposed sides of a building usually need attention first. Up Somborne is about 64 miles from central London. Managed blocks of flats are a big part of commuter-belt property; their frame mastic often ages block-wide.
Older community buildings, All Saints Church among them, often have frames of mixed ages whose mastic varies. Student blocks close to universities like University of Winchester, 5 miles south-east of Up Somborne, are easiest to work on between tenancies.
Up Somborne is about 5 miles north-west of Winchester, in Hampshire. We cover commercial sites throughout Up Somborne. Up Somborne is one of 723 places we cover in Hampshire for mastic joints. We also cover Southampton, around 12 miles from Up Somborne.
Work on mastic joints is covered throughout SO20, for business premises of every kind. Streets here include Court Lane and Up Somborne Lane, and sites on any of them can send details for a fixed quote. If your building is just outside Up Somborne, we cover Little Somborne (1 mile west), Ashley (1 mile south-west), King's Somborne (2 miles south-west), Lower Slackstead (4 miles south) and Braishfield (5 miles south). A short drive away, we cover Winchester (5 miles south-east), Eastleigh (9 miles south-east), Andover (9 miles north), Totton (12 miles south), Chandler's Ford (8 miles south) and Hedge End (13 miles south-east).
What’s near Up Somborne
Other landmarks nearby include Royal Hampshire County Hospital (4.9 miles south-east).
What affects the price in Up Somborne
A fixed quote reflects the actual work. It takes account of:
- Quantities, in metres or numbers
- How accessible the joints are
- Working within restricted access windows
- The size and state of each joint
Every site prices differently: joint size, product, access and site hours all play a part. Send the details and a fixed figure follows.
What we need to price the job
It doesn’t need to be a full survey. These details are enough to start:
- When you need the work done
- A wide shot and a close-up of the area
- The product your specification calls for
- The postcode of the building
Photos, drawings or a schedule of the joints and a fixed quote comes back to you. Where a site visit makes more sense, we’ll arrange one.
How a job runs
A typical day starts with protection: masking tape along the joint edges and sheeting over anything nearby. On site, the work typically takes anything from a day to a few weeks, depending on the number of buildings and joints, and our waste is bagged and taken away as we go. For a building around Up Somborne, tell us how to find it and who will meet us. Add it to your enquiry and we’ll build it into the plan.
- We check the asbestos register for older buildings and look at the joints.
- The products and programme are set out in a fixed quote.
- Failed mastic is removed completely.
- Joint faces are cleaned, backed and resealed.
- We finish each building before moving to the next.
What we need from you
- Send asbestos survey details if the building is pre-2000
- Send any specification or drawings in advance
- Agree which areas must stay open
Quotes
Need a figure for a tender or a budget? Send the scope and any drawings, and we will return a fixed quote that you can work with. For a chat about it beforehand, call the office on 01277 525 020 or use the quote form.
Advice
When something else is needed
We check first that sealant really is the fix. It won’t put right:
- Cracked or crumbling render, brick or stone at the joint edges (we will tell you if so)
- Water coming in from the roof or rainwater goods
- Frames that are rotten, warped or broken
Not sure which it is? You can phone 01277 525 020 or send photos by email and we will tell you honestly.
Surfaces we seal
- Window and door perimeters on blocks
- Communal entrances and stairwells
- Communal kitchens and washrooms
- Balcony and threshold joints
- External wall and movement joints
- Shopfronts below residential blocks
Your questions answered
Is Up Somborne too small for you to travel to?
Not at all. Up Somborne is within our area. We cover Greater London and the counties of the South East. Send photos and a list of what needs doing, and we will plan the job to need as few trips as possible.
Will you take on work at estates like Balldown Business Centre, close to Up Somborne?
Yes. Our area takes in Up Somborne and its surroundings, with estates and business parks such as Balldown Business Centre included. Send details of the unit and the work through our quote form for a quick quote.
Do you work to architects’ specifications?
Yes. Send it with your enquiry, and we’ll price the work to it, flagging anything that needs clarifying.
How do you handle work on occupied blocks?
The work is planned around occupiers. We agree the programme so you can notify occupiers, and entrances stay in use.
Is asbestos a concern with old mastic?
We don’t remove asbestos-containing materials. If old sealant is suspected, work stops until it’s tested in line with the dutyholder’s asbestos management.
When is resealing likely to be due?
There isn’t a single answer, because life depends on how much the joint moves, how exposed it is and how it’s cleaned and used. Regular checks let you plan resealing before leaks or damage.
How long does a job like this take?
The duration is planned around your programme and the access we’re given. You’ll have an expected duration with the quote.
When to bring in a specialist
For a quick touch-up, site staff may be fine, but anything bigger is another matter: a specialist works through quantities efficiently, leaves a consistent finish and backs it with a 12-month guarantee.
What you see is the finished bead, but most of the work is hidden. Correct depth, the right primer and a sealant matched to the movement are easy to get wrong without experience.
Why deal with it now?
A bead run over old mastic can look like a repair. It won’t grip the old sealant and soon comes away. Cutting out and resealing properly does it once. Converted and older buildings near places like Up Somborne tend to move, and aged sealant cracks. A sealant with the right movement capability, correctly sized, lasts far better.
Whether it’s a single area or a whole estate, the same things set the price: scope, access, product and programme. Call for a quote and we will put a fixed figure on it.
Why choose Mastic Doctor in Up Somborne
- Our applicators hold CSCS cards
- Fully insured
- CHAS accredited contractor
- Specification-led, product-correct work